263 citations · 2.6k across the 69 of their papers we have counts for
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The properties of ten O-type stars in the low-metallicity galaxies IC 1613, WLM and NGC 3109
F. Tramper, H. Sana, A. de Koter +2
Massive stars likely played an important role in the reionization of the Universe, and the formation of the first black holes. Massive stars in low-metallicity environments in the…
Rotational velocities of single and binary O-type stars in the Tarantula Nebula
O. H. Ramírez-Agudelo, H. Sana, A. de Koter +15
Rotation is a key parameter in the evolution of massive stars, affecting their evolution, chemical yields, ionizing photon budget, and final fate. We determined the projected rotat…
The properties of single WO stars
F. Tramper, S. M. Straal, G. Gräfener +5
The enigmatic oxygen sequence Wolf-Rayet (WO) stars represent a very late stage in massive star evolution, although their exact nature is still under debate. The spectra of most of…
Very Massive Stars in the Local Universe
Jorick S. Vink
Recent studies suggest the existence of very massive stars (VMS) up to 300 solar masses in the local Universe. As this finding may represent a paradigm shift for the canonical stel…